Question

State one characteristic each of chemical reactions wch take place when: a) dilute hydrochloric acid is added to sodium carbonate b)lemon juice is added gradually to potassium permanganate solution c) dilute sulphuric acid is added to barium chloride solution d) quicklime is treated with water

Answer 1

A) evolution of CO2 gas
B) change in colour
C) formation of precipitate
D) evolution of heat or change in temperature.

Answer 2

Hey!!! ❤❤

Here is yours answer

a) Evolution of hydrogen gas

b) Change in colour

c) Formation of white precipitate of barium sulphate

d) By the change in temperature

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